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<div class="title">CatmullClarkT_impl.hh</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* ========================================================================= *</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *                               OpenMesh                                    *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *           Copyright (c) 2001-2015, RWTH-Aachen University                 *</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *           Department of Computer Graphics and Multimedia                  *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> *                          All rights reserved.                             *</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *                            www.openmesh.org                               *</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *---------------------------------------------------------------------------*</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * This file is part of OpenMesh.                                            *</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *---------------------------------------------------------------------------*</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without        *</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions        *</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> * are met:                                                                  *</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * 1. Redistributions of source code must retain the above copyright notice, *</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> *    this list of conditions and the following disclaimer.                  *</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright      *</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> *    notice, this list of conditions and the following disclaimer in the    *</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> *    documentation and/or other materials provided with the distribution.   *</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * 3. Neither the name of the copyright holder nor the names of its          *</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> *    contributors may be used to endorse or promote products derived from   *</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> *    this software without specific prior written permission.               *</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment"> * &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment"> * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment"> * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment"> * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment"> * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment"> * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment"> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment"> * ========================================================================= */</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">//  CLASS CatmullClarkT - IMPLEMENTATION</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="preprocessor">#define OPENMESH_SUBDIVIDER_UNIFORM_CATMULLCLARK_CC</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">//== INCLUDES =================================================================</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="a00686.html">CatmullClarkT.hh</a>&quot;</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor">#include &lt;OpenMesh/Tools/Utils/MeshCheckerT.hh&gt;</span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">//== NAMESPACES ===============================================================</span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="keyword">namespace </span><a class="code" href="a01233.html">OpenMesh</a>   { <span class="comment">// BEGIN_NS_OPENMESH</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="keyword">namespace </span>Subdivider { <span class="comment">// BEGIN_NS_SUBVIDER</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="keyword">namespace </span>Uniform    { <span class="comment">// BEGIN_NS_UNIFORM</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">//== IMPLEMENTATION ==========================================================</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="keywordtype">bool</span></div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="a02969.html#a7a5e0f11bad95ea3cea2878e84861d40">   65</a></span>&#160;<a class="code" href="a02969.html#a7a5e0f11bad95ea3cea2878e84861d40">CatmullClarkT&lt; MeshType, RealType &gt;::prepare</a>( MeshType&amp; _m  )</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;{</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  _m.add_property( vp_pos_ );</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;  _m.add_property( ep_pos_ );</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  _m.add_property( fp_pos_ );</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  _m.add_property( creaseWeights_ );</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="comment">// initialize all weights to 0 (= smooth edge)</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;  <span class="keywordflow">for</span>( EdgeIter e_it = _m.edges_begin(); e_it != _m.edges_end(); ++e_it)</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;     _m.property(creaseWeights_, *e_it ) = 0.0;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;}</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="keywordtype">bool</span></div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="a02969.html#a8b44f7c06f0cc5fb5fa8dfeb5cb09755">   83</a></span>&#160;<a class="code" href="a02969.html#a8b44f7c06f0cc5fb5fa8dfeb5cb09755">CatmullClarkT&lt;MeshType,RealType&gt;::cleanup</a>( MeshType&amp; _m  )</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;{</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  _m.remove_property( vp_pos_ );</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;  _m.remove_property( ep_pos_ );</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  _m.remove_property( fp_pos_ );</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  _m.remove_property( creaseWeights_ );</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;}</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="keywordtype">bool</span></div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="a02969.html#a346c07c2d40dac303a1812106dec39d5">   96</a></span>&#160;<a class="code" href="a02969.html#a346c07c2d40dac303a1812106dec39d5">CatmullClarkT&lt;MeshType,RealType&gt;::subdivide</a>( MeshType&amp; _m , <span class="keywordtype">size_t</span> _n , <span class="keyword">const</span> <span class="keywordtype">bool</span> _update_points)</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;{</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;  <span class="comment">// Do _n subdivisions</span></div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;  <span class="keywordflow">for</span> ( <span class="keywordtype">size_t</span> i = 0; i &lt; _n; ++i)</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;  {</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="comment">// Compute face centroid</span></div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keywordflow">for</span> ( <span class="keyword">auto</span> fh : _m.faces())</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    {</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;      Point centroid;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;      _m.calc_face_centroid( fh, centroid);</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;      _m.property( fp_pos_, fh ) = centroid;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    }</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <span class="comment">// Compute position for new (edge-) vertices and store them in the edge property</span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordflow">for</span> ( <span class="keyword">auto</span> eh : _m.edges())</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;      compute_midpoint( _m, eh, _update_points );</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="comment">// position updates activated?</span></div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    <span class="keywordflow">if</span>(_update_points)</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    {</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;      <span class="comment">// compute new positions for old vertices</span></div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;      <span class="keywordflow">for</span> ( <span class="keyword">auto</span> vh : _m.vertices())</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        update_vertex( _m, vh );</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;      <span class="comment">// Commit changes in geometry</span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;      <span class="keywordflow">for</span> ( <span class="keyword">auto</span> vh : _m.vertices())</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        _m.set_point(vh, _m.property( vp_pos_, vh ) );</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    }</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="comment">// Split each edge at midpoint stored in edge property ep_pos_;</span></div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="comment">// Attention! Creating new edges, hence make sure the loop ends correctly.</span></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keywordflow">for</span> ( <span class="keyword">auto</span> eh : _m.edges())</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;      split_edge( _m, eh );</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="comment">// Commit changes in topology and reconsitute consistency</span></div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    <span class="comment">// Attention! Creating new faces, hence make sure the loop ends correctly.</span></div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <span class="keywordflow">for</span> ( <span class="keyword">auto</span> fh : _m.faces())</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;      split_face( _m, fh);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="preprocessor">#if defined(_DEBUG) || defined(DEBUG)</span></div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="comment">// Now we have an consistent mesh!</span></div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    assert( <a class="code" href="a03077.html">OpenMesh::Utils::MeshCheckerT&lt;MeshType&gt;</a>(_m).check() );</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;  }</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  _m.update_normals();</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;}</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="keywordtype">void</span></div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<a class="code" href="a02969.html">CatmullClarkT&lt;MeshType,RealType&gt;::split_face</a>( MeshType&amp; _m, <span class="keyword">const</span> FaceHandle&amp; _fh)</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;{</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  <span class="comment">/*</span></div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="comment">     Split an n-gon into n quads by connecting</span></div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="comment">     each vertex of fh to vh.</span></div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="comment">     - _fh will remain valid (it will become one of the quads)</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="comment">     - the halfedge handles of the new quads will</span></div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="comment">     point to the old halfedges</span></div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="comment">   */</span></div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;  <span class="comment">// Since edges already refined (valence*2)</span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;  <span class="keywordtype">size_t</span> valence = _m.valence(_fh)/2;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;  <span class="comment">// new mesh vertex from face centroid</span></div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;  VertexHandle vh = _m.add_vertex(_m.property( fp_pos_, _fh ));</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;  HalfedgeHandle hend = _m.halfedge_handle(_fh);</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;  HalfedgeHandle hh = _m.next_halfedge_handle(hend);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;  HalfedgeHandle hold = _m.new_edge(_m.to_vertex_handle(hend), vh);</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;  _m.set_next_halfedge_handle(hend, hold);</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;  _m.set_face_handle(hold, _fh);</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;  hold = _m.opposite_halfedge_handle(hold);</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <span class="keywordflow">for</span>(<span class="keywordtype">size_t</span> i = 1; i &lt; valence; i++)</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;  {</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    HalfedgeHandle hnext = _m.next_halfedge_handle(hh);</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    FaceHandle fnew = _m.new_face();</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    _m.set_halfedge_handle(fnew, hh);</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;    HalfedgeHandle hnew = _m.new_edge(_m.to_vertex_handle(hnext), vh);</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    _m.set_face_handle(hnew,  fnew);</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    _m.set_face_handle(hold,  fnew);</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    _m.set_face_handle(hh,    fnew);</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    _m.set_face_handle(hnext, fnew);</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    _m.set_next_halfedge_handle(hnew, hold);</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    _m.set_next_halfedge_handle(hold, hh);</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    _m.set_next_halfedge_handle(hh, hnext);</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    hh = _m.next_halfedge_handle(hnext);</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    _m.set_next_halfedge_handle(hnext, hnew);</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    hold = _m.opposite_halfedge_handle(hnew);</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;  }</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;  _m.set_next_halfedge_handle(hold, hh);</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;  _m.set_next_halfedge_handle(hh, hend);</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;  hh = _m.next_halfedge_handle(hend);</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;  _m.set_next_halfedge_handle(hend, hh);</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;  _m.set_next_halfedge_handle(hh, hold);</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;  _m.set_face_handle(hold, _fh);</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;  _m.set_halfedge_handle(vh, hold);</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;}</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;<span class="keywordtype">void</span></div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<a class="code" href="a02969.html">CatmullClarkT&lt;MeshType,RealType&gt;::split_edge</a>( MeshType&amp; _m, <span class="keyword">const</span> EdgeHandle&amp; _eh)</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;{</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;  HalfedgeHandle heh     = _m.halfedge_handle(_eh, 0);</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;  HalfedgeHandle opp_heh = _m.halfedge_handle(_eh, 1);</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;  HalfedgeHandle new_heh, opp_new_heh, t_heh;</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;  VertexHandle   vh;</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;  VertexHandle   vh1( _m.to_vertex_handle(heh));</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;  Point          zero(0,0,0);</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;  <span class="comment">// new vertex</span></div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;  vh                = _m.new_vertex( zero );</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;  _m.set_point( vh, _m.property( ep_pos_, _eh ) );</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;  <span class="comment">// Re-link mesh entities</span></div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;  <span class="keywordflow">if</span> (_m.is_boundary(_eh))</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;  {</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;    <span class="keywordflow">for</span> (t_heh = heh;</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        _m.next_halfedge_handle(t_heh) != opp_heh;</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;        t_heh = _m.opposite_halfedge_handle(_m.next_halfedge_handle(t_heh)))</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    {}</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;  }</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;  <span class="keywordflow">else</span></div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;  {</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;    <span class="keywordflow">for</span> (t_heh = _m.next_halfedge_handle(opp_heh);</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;        _m.next_halfedge_handle(t_heh) != opp_heh;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;        t_heh = _m.next_halfedge_handle(t_heh) )</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;    {}</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;  }</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;  new_heh     = _m.new_edge(vh, vh1);</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;  opp_new_heh = _m.opposite_halfedge_handle(new_heh);</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;  _m.set_vertex_handle( heh, vh );</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;  _m.set_next_halfedge_handle(t_heh, opp_new_heh);</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;  _m.set_next_halfedge_handle(new_heh, _m.next_halfedge_handle(heh));</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;  _m.set_next_halfedge_handle(heh, new_heh);</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;  _m.set_next_halfedge_handle(opp_new_heh, opp_heh);</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;  <span class="keywordflow">if</span> (_m.face_handle(opp_heh).is_valid())</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;  {</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;    _m.set_face_handle(opp_new_heh, _m.face_handle(opp_heh));</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    _m.set_halfedge_handle(_m.face_handle(opp_new_heh), opp_new_heh);</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;  }</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;  <span class="keywordflow">if</span>( _m.face_handle(heh).is_valid())</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;  {</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    _m.set_face_handle( new_heh, _m.face_handle(heh) );</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    _m.set_halfedge_handle( _m.face_handle(heh), heh );</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;  }</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;  _m.set_halfedge_handle( vh, new_heh);</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;  _m.set_halfedge_handle( vh1, opp_new_heh );</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;  <span class="comment">// Never forget this, when playing with the topology</span></div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;  _m.adjust_outgoing_halfedge( vh );</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;  _m.adjust_outgoing_halfedge( vh1 );</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;}</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;<span class="keywordtype">void</span></div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<a class="code" href="a02969.html">CatmullClarkT&lt;MeshType,RealType&gt;::compute_midpoint</a>( MeshType&amp; _m, <span class="keyword">const</span> EdgeHandle&amp; _eh, <span class="keyword">const</span> <span class="keywordtype">bool</span> _update_points)</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;{</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;  HalfedgeHandle heh, opp_heh;</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;  heh      = _m.halfedge_handle( _eh, 0);</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;  opp_heh  = _m.halfedge_handle( _eh, 1);</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;  Point pos( _m.point( _m.to_vertex_handle( heh)));</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;  pos +=  _m.point( _m.to_vertex_handle( opp_heh));</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;  <span class="comment">// boundary edge: just average vertex positions</span></div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;  <span class="comment">// this yields the [1/2 1/2] mask</span></div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="keywordflow">if</span> (_m.is_boundary(_eh) || !_update_points)</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;  {</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    pos *= <span class="keyword">static_cast&lt;</span>RealType<span class="keyword">&gt;</span>(0.5);</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;  }</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="comment">//  else if (_m.status(_eh).selected() )</span></div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;<span class="comment">//  {</span></div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;<span class="comment">//    pos *= 0.5; // change this</span></div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;<span class="comment">//  }</span></div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;  <span class="keywordflow">else</span> <span class="comment">// inner edge: add neighbouring Vertices to sum</span></div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;    <span class="comment">// this yields the [1/16 1/16; 3/8 3/8; 1/16 1/16] mask</span></div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;  {</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    pos += _m.property(fp_pos_, _m.face_handle(heh));</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    pos += _m.property(fp_pos_, _m.face_handle(opp_heh));</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;    pos *= <span class="keyword">static_cast&lt;</span>RealType<span class="keyword">&gt;</span>(0.25);</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;  }</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;  _m.property( ep_pos_, _eh ) = pos;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;}</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType&gt;</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;<span class="keywordtype">void</span></div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<a class="code" href="a02969.html">CatmullClarkT&lt;MeshType,RealType&gt;::update_vertex</a>( MeshType&amp; _m, <span class="keyword">const</span> VertexHandle&amp; _vh)</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;{</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  Point            pos(0.0,0.0,0.0);</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;  <span class="comment">// TODO boundary, Extraordinary Vertex and  Creased Surfaces</span></div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;  <span class="comment">// see &quot;A Factored Approach to Subdivision Surfaces&quot;</span></div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;  <span class="comment">// http://faculty.cs.tamu.edu/schaefer/research/tutorial.pdf</span></div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;  <span class="comment">// and http://www.cs.utah.edu/~lacewell/subdeval</span></div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;  <span class="keywordflow">if</span> ( _m.is_boundary( _vh))</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;  {</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;    pos = _m.point(_vh);</div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    VertexEdgeIter   ve_itr;</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;    <span class="keywordflow">for</span> ( ve_itr = _m.ve_iter( _vh); ve_itr.is_valid(); ++ve_itr)</div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;      <span class="keywordflow">if</span> ( _m.is_boundary( *ve_itr))</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;        pos += _m.property( ep_pos_, *ve_itr);</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    pos /= <span class="keyword">static_cast&lt;</span>typename <a class="code" href="a02621.html#a127a4d7ca521ed3254cd801917ee67d4">vector_traits&lt;typename MeshType::Point&gt;::value_type</a><span class="keyword">&gt;</span>(3.0);</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;  }</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;  <span class="keywordflow">else</span> <span class="comment">// inner vertex</span></div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;  {</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;    <span class="comment">/* For each (non boundary) vertex V, introduce a new vertex whose</span></div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;<span class="comment">       position is F/n + 2E/n + (n-3)V/n where F is the average of</span></div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;<span class="comment">       the new face vertices of all faces adjacent to the old vertex</span></div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;<span class="comment">       V, E is the average of the midpoints of all edges incident</span></div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;<span class="comment">       on the old vertex V, and n is the number of edges incident on</span></div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;<span class="comment">       the vertex.</span></div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;<span class="comment">       */</span></div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;    <span class="comment">/*</span></div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;<span class="comment">    Normal           Vec;</span></div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="comment">    VertexEdgeIter   ve_itr;</span></div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;<span class="comment">    double           valence(0.0);</span></div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;<span class="comment">    // R = Calculate Valence and sum of edge midpoints</span></div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;<span class="comment">    for ( ve_itr = _m.ve_iter( _vh); ve_itr; ++ve_itr)</span></div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;<span class="comment">    {</span></div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;<span class="comment">      valence+=1.0;</span></div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;<span class="comment">      pos += _m.property(ep_pos_, *ve_itr);</span></div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;<span class="comment">    }</span></div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;<span class="comment">    pos /= valence*valence;</span></div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;<span class="comment">    */</span></div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;    RealType       valence(0.0);</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;    VOHIter voh_it = _m.voh_iter( _vh );</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    <span class="keywordflow">for</span>( ; voh_it.is_valid(); ++voh_it )</div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;    {</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;      pos += _m.point( _m.to_vertex_handle( *voh_it ) );</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;      valence+=1.0;</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;    }</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;    pos /= valence*valence;</div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;</div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;    VertexFaceIter vf_itr;</div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;    Point          Q(0, 0, 0);</div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    <span class="keywordflow">for</span> ( vf_itr = _m.vf_iter( _vh); vf_itr.is_valid(); ++vf_itr) <span class="comment">//, neigboring_faces += 1.0 )</span></div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;    {</div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;      Q += _m.property(fp_pos_, *vf_itr);</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;    }</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;    Q /= valence*valence;<span class="comment">//neigboring_faces;</span></div><div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;</div><div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;    pos += _m.point(_vh) * (valence - RealType(2.0) )/valence + Q;</div><div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;    <span class="comment">//      pos = vector_cast&lt;Vec&gt;(_m.point(_vh));</span></div><div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;  }</div><div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;</div><div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;  _m.property( vp_pos_, _vh ) = pos;</div><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;}</div><div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;</div><div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;<span class="comment">//-----------------------------------------------------------------------------</span></div><div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;</div><div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;} <span class="comment">// END_NS_UNIFORM</span></div><div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;} <span class="comment">// END_NS_SUBDIVIDER</span></div><div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;} <span class="comment">// END_NS_OPENMESH</span></div><div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;<span class="comment">//=============================================================================</span></div><div class="ttc" id="a02969_html_a8b44f7c06f0cc5fb5fa8dfeb5cb09755"><div class="ttname"><a href="a02969.html#a8b44f7c06f0cc5fb5fa8dfeb5cb09755">OpenMesh::Subdivider::Uniform::CatmullClarkT::cleanup</a></div><div class="ttdeci">virtual bool cleanup(MeshType &amp;_m) override</div><div class="ttdoc">Remove properties and weights. </div><div class="ttdef"><b>Definition:</b> CatmullClarkT_impl.hh:83</div></div>
<div class="ttc" id="a02969_html_a7a5e0f11bad95ea3cea2878e84861d40"><div class="ttname"><a href="a02969.html#a7a5e0f11bad95ea3cea2878e84861d40">OpenMesh::Subdivider::Uniform::CatmullClarkT::prepare</a></div><div class="ttdeci">virtual bool prepare(MeshType &amp;_m) override</div><div class="ttdoc">Initialize properties and weights. </div><div class="ttdef"><b>Definition:</b> CatmullClarkT_impl.hh:65</div></div>
<div class="ttc" id="a02621_html_a127a4d7ca521ed3254cd801917ee67d4"><div class="ttname"><a href="a02621.html#a127a4d7ca521ed3254cd801917ee67d4">OpenMesh::vector_traits::value_type</a></div><div class="ttdeci">T::value_type value_type</div><div class="ttdoc">Type of the scalar value. </div><div class="ttdef"><b>Definition:</b> vector_traits.hh:94</div></div>
<div class="ttc" id="a00686_html"><div class="ttname"><a href="a00686.html">CatmullClarkT.hh</a></div></div>
<div class="ttc" id="a02969_html"><div class="ttname"><a href="a02969.html">OpenMesh::Subdivider::Uniform::CatmullClarkT</a></div><div class="ttdoc">Based on code from Leon Kos, CAD lab, Mech.Eng., University of Ljubljana, Slovenia (http://www...</div><div class="ttdef"><b>Definition:</b> CatmullClarkT.hh:85</div></div>
<div class="ttc" id="a03077_html"><div class="ttname"><a href="a03077.html">OpenMesh::Utils::MeshCheckerT</a></div><div class="ttdoc">Check integrity of mesh. </div><div class="ttdef"><b>Definition:</b> MeshCheckerT.hh:73</div></div>
<div class="ttc" id="a01233_html"><div class="ttname"><a href="a01233.html">OpenMesh</a></div><div class="ttdoc">Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...</div><div class="ttdef"><b>Definition:</b> MeshItems.hh:59</div></div>
<div class="ttc" id="a02969_html_a346c07c2d40dac303a1812106dec39d5"><div class="ttname"><a href="a02969.html#a346c07c2d40dac303a1812106dec39d5">OpenMesh::Subdivider::Uniform::CatmullClarkT::subdivide</a></div><div class="ttdeci">virtual bool subdivide(MeshType &amp;_m, size_t _n, const bool _update_points=true) override</div><div class="ttdoc">Execute n subdivision steps. </div><div class="ttdef"><b>Definition:</b> CatmullClarkT_impl.hh:96</div></div>
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